Type-writing machine.



E. E. BARNEY.

TYPE WRITING MACHINE.

APPLICATION rum) mm 30, .1909.

Patented Aug. 16, 1910.

WITNESSES:

INVENTEIR fi/zi/w HEATTBRNEY THE nomus PETERS co., WASHINGTON. :1 c4

UNITED STATES Parana? OFFICE.

EDWIN E. BARNEY, OF SYRACUSE, NEW YORK, ASSIGNOR TO THE MONARCH TYPE-WRITER COMPANY, OF SYRACUSE, NEW YORK, A CORPORATION OF NEW YORK.

TYPE-WRITING MACHINE.

Specification of Letters Patent.

Patented Aug, 16, 1910.

To all whom it may concern:

Be it known that I, EDWIN E. BARNEY, a citizen of the United States, andresident of Syracuse, in the county of Onondaga and State of New York,have invented certain new and useful Improvements in Type- WVritingMachines, of which the following is a specification.

My invention relates to typewriting machines and has for its main objectto provide simple and efiicient means which can be manufactured at smallcost for connecting a ribbon spool to its driving means and for readilydetaching the spool therefrom when desired.

To the above and other ends which will hereinafter appear, my inventionconsists in the features of construction, arrangements of parts andcombinations of devices to be hereinafter described and particularlypointed out in the appended claims.

In the accompanying drawings, Figure 1 is a fragmentary verticalsectional view taken through the top plate and showing a ribbon spoolshaft, a ribbon spool and devices made in accordance with my inventionfor locking the spool to the shaft and readily detaching the same whendesired. Fig. 2 1s a transverse sectional view taken through the ribbonspool on the line 00-50 of Fig. 1 and looking in the direction of thearrow at said line. Fig. 3 is an enlarged detail fragmentary verticalsectional view showing a portion of the ribbon spool and the means fordetachably securing the same to its driving shaft, the parts being shownin the locked position. Fig. 4 is a like view of the same showing thelocking means released and the spool partly removed from the shaft.

I have shown my invention in connection with a form of ribbon spool anddriving mechanism such as are employed in the Monarch machine, though itshould be understood that the invention may be embodied in variousstyles of typewriting machines.

The top plate 1 of the machine has a depending bearing lug orstud2through which a vertically disposed driving shaft 3 extends. Thelower end of the shaft is provided with a bevel gear 4: connected tosuitable driving means by which the shaft is rotated to wind the spool.A collar 5 is serespectively,

cured to the driving shaft by a screw or pin 6 and this collar bears onthe top plate and supports the driving shaft in its bearing. The ribbonspool in the present instance comprises upper and lower flanges 7 and 7united by three posts or spindles 8 riveted to and connecting theflanges and forming a core for the spool. A conelike finder or directrix9 is secured in the central opening in the flange 7 to guide the ribbonspool shaft to the central opening in the upper. flange. The lowerflange 7 of the spool rests upon the collar 5 and is provided with acircular series of openings 10 into one of which projects an upwardlyextending finger or pin 11 on the collar, to lock the ribbon spool torotate with its drivin shaft 3. The upper end portion of the drivingshaft 3 is provided with a lateral or transverse opening 12 that leadsinto the space between the flanges of the spool and in which a lockingdevice 13 is adapted to be received. The locking device 13 in thepresent instance is in the form of a ball and the lateral opening 12 isof sufiicient dimensions to receive the ball and afford a movementthereof at right angles to the axis of the shaft but the out-let of theopening is contracted as indicated at 14; to prevent the ball frompassing entirely through the opening 12. The upper end portion of thedriving shaft is also provided with an axial opening 15 in which aplunger 16 fits and is adapted to work. The upper end of the plunger isprovided with a finger piece or head 17 by which the plunger may becontrolled. The lower end of the opening 15 contains a coiled expansionspring 18 which bears at its lower end against the lower wall of theaxial opening 15 and at its upper end against the lower end of theplunger 16 to normally maintain the plunger elevated as shown in Fig. 3.The plunger is provided with a cut-out or opening 19, one wall 20 ofwhich constitutes a cam face which is cooperative with the looking ball13 as shown in Fig.3 to force the ball out through the lateral opening12 in the driving shaft to overlap the lower flange 7 and prevent theremoval of the spool from the shaft. The spring 18 normally maintainsthe plunger 16 in the position shown in Fig. 3 to hold the locking ballprojected to lock the spool on the shaft. Should the operator desire toremove the spool from the shaft it is merely necessary to depress theplunger 16 through the finger piece 17, moving the cam 20 downwardly outof contact with the locking ball 18, the latter then being free to enterdeeper into the recess 19 in the plunger. The ball may at this time dropback into the recess 19. At any rate the ball will be forced back intothe recess when pressure is exerted upwardly on the ribbon spool. Atsuch time the lower flange will bear against the ball and force itinwardly into the recess in the plunger as shown in Fig. 4. It will beseen that the dimensions of the recess 19 in the plunger are such thatthe locking ball 13 may be forced back of the periphery of the shaft soas to ofier no obstruction to the removal of the ribbon spool, the lowerflange of the spool then being adapted to pass the locking ball as shownin Fig. 4.

In assembling the parts the lateral aperture 12 is drilled through theshaft, the opening bein slightly larger than the diameter of the lockingball. The bur 14: is afterward formed to slightly contact the out-let ofthe opening, thus limiting the outward movement of the ball to theposition shown in Fig. 3 so as to prevent the removal of the ballthrough the opening 12. It will be understood that the insertion of thelocking ball through the opening 12 in the first instance likewise movesthe ball into the recess 19 in the plunger 16 and prevents the removalof the plunger from its axial bore in the shaft.

It will be seen from the foregoing description that I have providedsimple and efficient means adapted to form an interlocking connectionwith the spool for connecting the spool to the shaft and for readilyaffording a removal of the spool from the shaft when desired. It willalso be seen that the means for locking the spool on its shaft and foraffording a detachment of the spool may be said to comprise three parts,2'. 6., the locking ball 13, the plunger 16 and the spring 18, and thatthese devices are simple in construction, are cheap to manufacture andcannot be easily destroyed or disarranged. Moreover, the position of thefinger piece 17 of the plunger 16 affords ready access to the releasingmeans, presented as it is on to of the ribbon spool where it may be reaily actuated.

Various modifications may be made without departing from the spirit ofmy invention.

What I claim as new and desire to secure by Letters Patent, is

1. In a typewriting machine, the combination of a driving shaft havingan axial opening therein; a member surrounding the shaft and detachabletherefrom; and means for detachably connecting said member to saidshaft, said means comprising a lockin ball extending into said axialopening an adapted to form an interlocking connection between said shaftand member to prevent a detachment of the member, and means operable atwill for affording a movement of the ball in said opening to carry theball out of cooperative relation with said member, thus breakingsaidinterlocking connection and affording a removal of said member.

2. The combination of a driving shaft with an axial opening therein; a s001; and means for connecting said spoo to said shaft, said meanscomprising a locking ball received in said axial opening, and meansreceived in said opening for moving said locking ball into and out oflocking position.

3. In a typewriting machine, the combination of a ribbon spool shafthaving an axial opening therein; a ribbon spool; and means fordetachably connecting said ribbon spool to said shaft, said meanscomprising a locking device received in said axial opening and adaptedto be projected into the path of the s 001 to prevent a withdrawal ofthe spoo from said shaft, and a spring-pressed plunger for holding saiddevice in its locking position.

4:. In a typewriting machine, the combi nation of a ribbon spool shaft;a ribbon spool; and means for detachably connecting said ribbon spool tosaid shaft, said means comprising a locking device adapted to beprojected into the path of the s 001 to prevent a withdrawal of the spoofrom said shaft, a spring-pressed plunger movable axially of said shaftfor holding said device in its locking position, and a finger piececonnected to said plunger for releasing said device to afford awithdrawal of the spool from said shaft.

5. In a typewriting machine, the combination of a ribbon spool shaft; aribbon spool which surrounds said shaft; and means for detachablyconnecting said spool to said shaft, said means comprising a lookingball contained in an opening in said shaft and adapted to overlap thespool and prevent a withdrawal of the spool from the shaft, and meansfor affording a movement of the ball to a position where the spool isfree to be withdrawn from the shaft.

6. In a typewriting machine, the combination of a ribbon s 001 shaft; aribbon spool surrounding said shaft; and means for detachably connectingsaid s 001 to said shaft, said means comprising a ocking ball containedin an opening in said shaft and adapted to overlap the spool and preventa withdrawal of the spool from the shaft, and spring-pressed meanscooperative with said ball for normally retaining the ball in lock: ingposition and for affording a movement of the ball to a position wherethe spool is free to be withdrawn from the shaft.

7. In a typewriting machine, the combination of a ribbon spool shaft; aribbon spool surrounding said shaft; and means for detachably connectingsaid spool to said shaft, said means comprising a locking ball containedin an opening in said shaft and adapted to roject outwardly beyond theperiphery of the shaft and to overlap the spool and prevent a withdrawalof the spool from the shaft, and means for affording a movement of theball inwardly at right angles to the axis of the shaft and to a positionwhere the spool is free to be withdrawn from the shaft.

8. In a typewriting machine, the combination of a ribbon spool shaft; aribbon spool; and means for detachably connecting said spool to saidshaft, said means comprising a locking ball contained in an opening insaid shaft and adapted to overlap the spool and prevent a withdrawal ofthe spool from the shaft, and a hand controlled spring-pressed plungercooperative with said ball for normally retaining the ball in lockingposition and for affording a movement of the ball to a position wherethe spool is free to be withdrawn from the shaft.

9. In a typewriting machine, the combination of a ribbon spool shaft; aribbon spool; and means for detachably connecting said spool to saidshaft, said means comprising a locking device contained in a lateralopening in said shaft and adapted to overlap the ribbon spool andprevent a withdrawal of the spool from the shaft, and a hand controlledplunger contained in an opening extending axially of said shaft andcooperative with said device to press it out through said lateralopening in the shaft and beyond the periphery of the shaft to lockingposition and adapted to afford a movement of said device to a positionwithin the periphery of the shaft to release the spool and permit itsremoval from the shaft.

10. In a typewriting machine, the combination of a ribbon spool shaft; aribbon spool; and means for detachably connecting said spool to saidshaft, said means comprising a locking device contained in a lateralopening in said shaft and adapted to overlap the ribbon spool andprevent a withdrawal of the spool from the shaft and a springpressedhand controlled plunger contained in an opening extending axially ofsaid shaft, a cam on said plunger cooperative with said device tonormally press it out through said lateral opening in the shaft andbeyond the periphery of the shaft to locking position and adapted toafford a movement of said device to a position within the periphery ofthe shaft to release the spool and permit its removal from the shaft.

11. In a typewriting machine, the combination of a ribbon spool shaft; aribbon spool; and means for detachably connecting said spool to saidshaft, said means comprising a locking ball contained in a lateralopening in said shaft, said opening having a contracted out-let toprevent the locking ball from passing therethrough, said locking ballbeing adapted to overlap the ribbon spool and prevent a withdrawal ofthe spool from the shaft, and hand controlled means for regulating theposition of the locking ball in said opening, to lock the spool on orafiord a removal of the spool from the shaft.

12. In a typewriting machine, the combination of a ribbon spool shaft; aribbon spool; and means for detachably connecting said spool to saidshaft, said means comprising a locking ball contained in a lateralopening in said shaft, said opening having a contracted out-let toprevent the locking ball from passing therethrough, said locking ballbeing adapted to overlap the ribbon spool and prevent a withdrawal ofthe spool from the shaft, a spring-pressed hand-controlled plungercontained in an opening extending axially of said shaft, and a cam onsaid plunger cooperative with said locking ball to normally press it outthrough said lateral opening in the shaft and beyond the periphery ofthe shaft to locking position and adapted to afford a movement of saidlocking ball to a position within the periphery of the shaft to releasethe spool and permit its removal from the shaft.

13. In a typewriting machine, the combination of a ribbon spool shaft; aribbon spool; and means for detachably connecting said spool to saidshaft, said means comprising a locking device contained in a trans- 105verse opening in said shaft and adapted to overlap a flange of the spooland prevent a withdrawal of the spool from the shaft, and ahand-controlled plunger provided with a recess in which said lockingdevice is adapt- 110 ed to be received, said plunger cooperating withsaid locking device to normally press it through said transverse openingto locking position and adapted to afford a movement of the lockingdevice into the said recess in 115 the plunger to release the spool andpermit its removal from the shaft.

14;. In a typewriting machine, the combination of a ribbon spool shaft;a ribbon spool; and means for detachably connecting 120 said spool tosaid shaft, said means comprising a locking ball contained in atransverse opening in said shaft and adapted to overlap a flange of thespool and prevent a withdrawal of the spool from the shaft, and a 125hand-controlled spring-pressed plunger provided with a recess in whichsaid locking ball is adapted to be received, said plunger working in anaxially extending opening in said shaft and provided with a cam which 19 cooperates With said locking ball to nor- Signed at Syracuse, in thecounty of Ononlnally press it through said transverse opendaga and Stateof New York this 28th day ing in the shaft to locking position and ofJune, A. D. 1909.

adapted to afford a movement of the locking EDWIN E. BARNEY. 5,ba11 intothe said recess in the plunger and Witnesses: n

away from the spool flange to release the ISAAC L. BERRY,

spool and permit its removal from the shaft. WESLEY ONDERDONK.

